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Finding the Fourth Proportional to 187,465.61, 258,701.81 and 101,424.32

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Solution

The fourth proportional to 187,465.61, 258,701.81 and 101,424.32 is: 139,965.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,465.61 : 258,701.81 = 101,424.32 : x
  2. Step 2: Convert to fraction form
    187,465.61/258,701.81 = 101,424.32/x
  3. Step 3: Cross multiply
    187,465.61x = 258,701.81 × 101,424.32
  4. Step 4: Simplify right side
    187,465.61x = 26,238,654,654.90
  5. Step 5: Solve for x
    x = 26,238,654,654.90/187,465.61
  6. Step 6: Final answer
    x = 139,965.16

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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.