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Finding the Fourth Proportional to 127,656,468.60, 191,484,702.90 and 125,640,929.40

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Solution

The fourth proportional to 127,656,468.60, 191,484,702.90 and 125,640,929.40 is: 188,461,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,656,468.60 : 191,484,702.90 = 125,640,929.40 : x
  2. Step 2: Convert to fraction form
    127,656,468.60/191,484,702.90 = 125,640,929.40/x
  3. Step 3: Cross multiply
    127,656,468.60x = 191,484,702.90 × 125,640,929.40
  4. Step 4: Simplify right side
    127,656,468.60x = 24,058,316,038,238,876
  5. Step 5: Solve for x
    x = 24,058,316,038,238,876/127,656,468.60
  6. Step 6: Final answer
    x = 188,461,394.10

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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.