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Finding the Fourth Proportional to 104,777.28, 157,366.80 and 89,818.20

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Solution

The fourth proportional to 104,777.28, 157,366.80 and 89,818.20 is: 134,899.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,777.28 : 157,366.80 = 89,818.20 : x
  2. Step 2: Convert to fraction form
    104,777.28/157,366.80 = 89,818.20/x
  3. Step 3: Cross multiply
    104,777.28x = 157,366.80 × 89,818.20
  4. Step 4: Simplify right side
    104,777.28x = 14,134,402,715.76
  5. Step 5: Solve for x
    x = 14,134,402,715.76/104,777.28
  6. Step 6: Final answer
    x = 134,899.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.