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Finding the Fourth Proportional to 93,402.20, 128,895.03 and 59,868.20

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Solution

The fourth proportional to 93,402.20, 128,895.03 and 59,868.20 is: 82,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,402.20 : 128,895.03 = 59,868.20 : x
  2. Step 2: Convert to fraction form
    93,402.20/128,895.03 = 59,868.20/x
  3. Step 3: Cross multiply
    93,402.20x = 128,895.03 × 59,868.20
  4. Step 4: Simplify right side
    93,402.20x = 7,716,712,790.57
  5. Step 5: Solve for x
    x = 7,716,712,790.57/93,402.20
  6. Step 6: Final answer
    x = 82,618.11

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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.