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Finding the Fourth Proportional to 93,710.88, 129,385.08 and 69,518.16

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Solution

The fourth proportional to 93,710.88, 129,385.08 and 69,518.16 is: 95,982.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,710.88 : 129,385.08 = 69,518.16 : x
  2. Step 2: Convert to fraction form
    93,710.88/129,385.08 = 69,518.16/x
  3. Step 3: Cross multiply
    93,710.88x = 129,385.08 × 69,518.16
  4. Step 4: Simplify right side
    93,710.88x = 8,994,612,693.05
  5. Step 5: Solve for x
    x = 8,994,612,693.05/93,710.88
  6. Step 6: Final answer
    x = 95,982.59

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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.