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Finding the Fourth Proportional to 127,281.60, 190,922.40 and 127,281.60

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Solution

The fourth proportional to 127,281.60, 190,922.40 and 127,281.60 is: 190,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,281.60 : 190,922.40 = 127,281.60 : x
  2. Step 2: Convert to fraction form
    127,281.60/190,922.40 = 127,281.60/x
  3. Step 3: Cross multiply
    127,281.60x = 190,922.40 × 127,281.60
  4. Step 4: Simplify right side
    127,281.60x = 24,300,908,547.84
  5. Step 5: Solve for x
    x = 24,300,908,547.84/127,281.60
  6. Step 6: Final answer
    x = 190,922.40

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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.