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Finding the Fourth Proportional to 79,712.16, 110,007.75 and 43,902.16

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Solution

The fourth proportional to 79,712.16, 110,007.75 and 43,902.16 is: 60,587.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,712.16 : 110,007.75 = 43,902.16 : x
  2. Step 2: Convert to fraction form
    79,712.16/110,007.75 = 43,902.16/x
  3. Step 3: Cross multiply
    79,712.16x = 110,007.75 × 43,902.16
  4. Step 4: Simplify right side
    79,712.16x = 4,829,577,841.74
  5. Step 5: Solve for x
    x = 4,829,577,841.74/79,712.16
  6. Step 6: Final answer
    x = 60,587.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.