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Finding the Fourth Proportional to 127,225.40, 190,838.10 and 127,225.40

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Solution

The fourth proportional to 127,225.40, 190,838.10 and 127,225.40 is: 190,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,225.40 : 190,838.10 = 127,225.40 : x
  2. Step 2: Convert to fraction form
    127,225.40/190,838.10 = 127,225.40/x
  3. Step 3: Cross multiply
    127,225.40x = 190,838.10 × 127,225.40
  4. Step 4: Simplify right side
    127,225.40x = 24,279,453,607.74
  5. Step 5: Solve for x
    x = 24,279,453,607.74/127,225.40
  6. Step 6: Final answer
    x = 190,838.10

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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.