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Finding the Fourth Proportional to 74,482.93, 102,808.61 and 42,673.02

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Solution

The fourth proportional to 74,482.93, 102,808.61 and 42,673.02 is: 58,901.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,482.93 : 102,808.61 = 42,673.02 : x
  2. Step 2: Convert to fraction form
    74,482.93/102,808.61 = 42,673.02/x
  3. Step 3: Cross multiply
    74,482.93x = 102,808.61 × 42,673.02
  4. Step 4: Simplify right side
    74,482.93x = 4,387,153,870.70
  5. Step 5: Solve for x
    x = 4,387,153,870.70/74,482.93
  6. Step 6: Final answer
    x = 58,901.47

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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.