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Finding the Fourth Proportional to 84,248,207.40, 118,287,612.60 and 84,248,207.40

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Solution

The fourth proportional to 84,248,207.40, 118,287,612.60 and 84,248,207.40 is: 118,287,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,207.40 : 118,287,612.60 = 84,248,207.40 : x
  2. Step 2: Convert to fraction form
    84,248,207.40/118,287,612.60 = 84,248,207.40/x
  3. Step 3: Cross multiply
    84,248,207.40x = 118,287,612.60 × 84,248,207.40
  4. Step 4: Simplify right side
    84,248,207.40x = 9,965,519,319,175,654
  5. Step 5: Solve for x
    x = 9,965,519,319,175,654/84,248,207.40
  6. Step 6: Final answer
    x = 118,287,612.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.