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Finding the Fourth Proportional to 92,643.90, 139,030.65 and 59,444.70

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Solution

The fourth proportional to 92,643.90, 139,030.65 and 59,444.70 is: 89,208.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,643.90 : 139,030.65 = 59,444.70 : x
  2. Step 2: Convert to fraction form
    92,643.90/139,030.65 = 59,444.70/x
  3. Step 3: Cross multiply
    92,643.90x = 139,030.65 × 59,444.70
  4. Step 4: Simplify right side
    92,643.90x = 8,264,635,280.06
  5. Step 5: Solve for x
    x = 8,264,635,280.06/92,643.90
  6. Step 6: Final answer
    x = 89,208.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.