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Finding the Fourth Proportional to 78,598.61, 108,225.87 and 59,245.64

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Solution

The fourth proportional to 78,598.61, 108,225.87 and 59,245.64 is: 81,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,598.61 : 108,225.87 = 59,245.64 : x
  2. Step 2: Convert to fraction form
    78,598.61/108,225.87 = 59,245.64/x
  3. Step 3: Cross multiply
    78,598.61x = 108,225.87 × 59,245.64
  4. Step 4: Simplify right side
    78,598.61x = 6,411,910,932.71
  5. Step 5: Solve for x
    x = 6,411,910,932.71/78,598.61
  6. Step 6: Final answer
    x = 81,577.92

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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.