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Finding the Fourth Proportional to 173,572.04, 260,264.40 and 78,750.47

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Solution

The fourth proportional to 173,572.04, 260,264.40 and 78,750.47 is: 118,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,572.04 : 260,264.40 = 78,750.47 : x
  2. Step 2: Convert to fraction form
    173,572.04/260,264.40 = 78,750.47/x
  3. Step 3: Cross multiply
    173,572.04x = 260,264.40 × 78,750.47
  4. Step 4: Simplify right side
    173,572.04x = 20,495,943,824.27
  5. Step 5: Solve for x
    x = 20,495,943,824.27/173,572.04
  6. Step 6: Final answer
    x = 118,083.21

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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.