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Finding the Fourth Proportional to 102,285.99, 141,223.91 and 64,060.88

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Solution

The fourth proportional to 102,285.99, 141,223.91 and 64,060.88 is: 88,447.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,285.99 : 141,223.91 = 64,060.88 : x
  2. Step 2: Convert to fraction form
    102,285.99/141,223.91 = 64,060.88/x
  3. Step 3: Cross multiply
    102,285.99x = 141,223.91 × 64,060.88
  4. Step 4: Simplify right side
    102,285.99x = 9,046,926,925.22
  5. Step 5: Solve for x
    x = 9,046,926,925.22/102,285.99
  6. Step 6: Final answer
    x = 88,447.37

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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.