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Finding the Fourth Proportional to 93,988.55, 129,711.06 and 53,701.45

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Solution

The fourth proportional to 93,988.55, 129,711.06 and 53,701.45 is: 74,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,988.55 : 129,711.06 = 53,701.45 : x
  2. Step 2: Convert to fraction form
    93,988.55/129,711.06 = 53,701.45/x
  3. Step 3: Cross multiply
    93,988.55x = 129,711.06 × 53,701.45
  4. Step 4: Simplify right side
    93,988.55x = 6,965,672,003.04
  5. Step 5: Solve for x
    x = 6,965,672,003.04/93,988.55
  6. Step 6: Final answer
    x = 74,111.92

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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.