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Finding the Fourth Proportional to 79,003,411.20, 110,680,358.40 and 79,003,411.20

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Solution

The fourth proportional to 79,003,411.20, 110,680,358.40 and 79,003,411.20 is: 110,680,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,003,411.20 : 110,680,358.40 = 79,003,411.20 : x
  2. Step 2: Convert to fraction form
    79,003,411.20/110,680,358.40 = 79,003,411.20/x
  3. Step 3: Cross multiply
    79,003,411.20x = 110,680,358.40 × 79,003,411.20
  4. Step 4: Simplify right side
    79,003,411.20x = 8,744,125,866,438,575
  5. Step 5: Solve for x
    x = 8,744,125,866,438,575/79,003,411.20
  6. Step 6: Final answer
    x = 110,680,358.40

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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.