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Finding the Fourth Proportional to 74,312.53, 102,551.25 and 42,482.11

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Solution

The fourth proportional to 74,312.53, 102,551.25 and 42,482.11 is: 58,625.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,312.53 : 102,551.25 = 42,482.11 : x
  2. Step 2: Convert to fraction form
    74,312.53/102,551.25 = 42,482.11/x
  3. Step 3: Cross multiply
    74,312.53x = 102,551.25 × 42,482.11
  4. Step 4: Simplify right side
    74,312.53x = 4,356,593,483.14
  5. Step 5: Solve for x
    x = 4,356,593,483.14/74,312.53
  6. Step 6: Final answer
    x = 58,625.29

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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.