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Finding the Fourth Proportional to 269,689.93, 372,170.52 and 156,510.25

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Solution

The fourth proportional to 269,689.93, 372,170.52 and 156,510.25 is: 215,983.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,689.93 : 372,170.52 = 156,510.25 : x
  2. Step 2: Convert to fraction form
    269,689.93/372,170.52 = 156,510.25/x
  3. Step 3: Cross multiply
    269,689.93x = 372,170.52 × 156,510.25
  4. Step 4: Simplify right side
    269,689.93x = 58,248,501,127.83
  5. Step 5: Solve for x
    x = 58,248,501,127.83/269,689.93
  6. Step 6: Final answer
    x = 215,983.23

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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.