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Finding the Fourth Proportional to 99,088.26, 136,724.67 and 56,069.70

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Solution

The fourth proportional to 99,088.26, 136,724.67 and 56,069.70 is: 77,366.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,088.26 : 136,724.67 = 56,069.70 : x
  2. Step 2: Convert to fraction form
    99,088.26/136,724.67 = 56,069.70/x
  3. Step 3: Cross multiply
    99,088.26x = 136,724.67 × 56,069.70
  4. Step 4: Simplify right side
    99,088.26x = 7,666,111,229.50
  5. Step 5: Solve for x
    x = 7,666,111,229.50/99,088.26
  6. Step 6: Final answer
    x = 77,366.49

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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.