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Finding the Fourth Proportional to 127,656,453.60, 191,484,680.40 and 125,640,914.40

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Solution

The fourth proportional to 127,656,453.60, 191,484,680.40 and 125,640,914.40 is: 188,461,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,656,453.60 : 191,484,680.40 = 125,640,914.40 : x
  2. Step 2: Convert to fraction form
    127,656,453.60/191,484,680.40 = 125,640,914.40/x
  3. Step 3: Cross multiply
    127,656,453.60x = 191,484,680.40 × 125,640,914.40
  4. Step 4: Simplify right side
    127,656,453.60x = 24,058,310,339,047,760
  5. Step 5: Solve for x
    x = 24,058,310,339,047,760/127,656,453.60
  6. Step 6: Final answer
    x = 188,461,371.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.