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Finding the Fourth Proportional to 74,482.83, 102,777.93 and 42,657.93

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Solution

The fourth proportional to 74,482.83, 102,777.93 and 42,657.93 is: 58,863.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,482.83 : 102,777.93 = 42,657.93 : x
  2. Step 2: Convert to fraction form
    74,482.83/102,777.93 = 42,657.93/x
  3. Step 3: Cross multiply
    74,482.83x = 102,777.93 × 42,657.93
  4. Step 4: Simplify right side
    74,482.83x = 4,384,293,743.48
  5. Step 5: Solve for x
    x = 4,384,293,743.48/74,482.83
  6. Step 6: Final answer
    x = 58,863.15

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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.