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Finding the Fourth Proportional to 152,565.53, 210,552.91 and 84,603.82

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Solution

The fourth proportional to 152,565.53, 210,552.91 and 84,603.82 is: 116,760.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,565.53 : 210,552.91 = 84,603.82 : x
  2. Step 2: Convert to fraction form
    152,565.53/210,552.91 = 84,603.82/x
  3. Step 3: Cross multiply
    152,565.53x = 210,552.91 × 84,603.82
  4. Step 4: Simplify right side
    152,565.53x = 17,813,580,549.80
  5. Step 5: Solve for x
    x = 17,813,580,549.80/152,565.53
  6. Step 6: Final answer
    x = 116,760.19

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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.