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Finding the Fourth Proportional to 87,153.77, 130,730.65 and 60,909.77

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Solution

The fourth proportional to 87,153.77, 130,730.65 and 60,909.77 is: 91,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,153.77 : 130,730.65 = 60,909.77 : x
  2. Step 2: Convert to fraction form
    87,153.77/130,730.65 = 60,909.77/x
  3. Step 3: Cross multiply
    87,153.77x = 130,730.65 × 60,909.77
  4. Step 4: Simplify right side
    87,153.77x = 7,962,773,017.52
  5. Step 5: Solve for x
    x = 7,962,773,017.52/87,153.77
  6. Step 6: Final answer
    x = 91,364.65

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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.