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Finding the Fourth Proportional to 157,125.77, 216,285.95 and 136,947.66

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Solution

The fourth proportional to 157,125.77, 216,285.95 and 136,947.66 is: 188,510.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,125.77 : 216,285.95 = 136,947.66 : x
  2. Step 2: Convert to fraction form
    157,125.77/216,285.95 = 136,947.66/x
  3. Step 3: Cross multiply
    157,125.77x = 216,285.95 × 136,947.66
  4. Step 4: Simplify right side
    157,125.77x = 29,619,854,720.95
  5. Step 5: Solve for x
    x = 29,619,854,720.95/157,125.77
  6. Step 6: Final answer
    x = 188,510.48

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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.