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Finding the Fourth Proportional to 103,371.16, 142,641.08 and 58,054.08

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Solution

The fourth proportional to 103,371.16, 142,641.08 and 58,054.08 is: 80,108.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,371.16 : 142,641.08 = 58,054.08 : x
  2. Step 2: Convert to fraction form
    103,371.16/142,641.08 = 58,054.08/x
  3. Step 3: Cross multiply
    103,371.16x = 142,641.08 × 58,054.08
  4. Step 4: Simplify right side
    103,371.16x = 8,280,896,669.61
  5. Step 5: Solve for x
    x = 8,280,896,669.61/103,371.16
  6. Step 6: Final answer
    x = 80,108.38

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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.