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Finding the Fourth Proportional to 124,903.61, 172,371.10 and 68,314.98

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Solution

The fourth proportional to 124,903.61, 172,371.10 and 68,314.98 is: 94,276.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,903.61 : 172,371.10 = 68,314.98 : x
  2. Step 2: Convert to fraction form
    124,903.61/172,371.10 = 68,314.98/x
  3. Step 3: Cross multiply
    124,903.61x = 172,371.10 × 68,314.98
  4. Step 4: Simplify right side
    124,903.61x = 11,775,528,249.08
  5. Step 5: Solve for x
    x = 11,775,528,249.08/124,903.61
  6. Step 6: Final answer
    x = 94,276.92

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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.