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Finding the Fourth Proportional to 74,499.68, 102,800.94 and 42,666.68

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Solution

The fourth proportional to 74,499.68, 102,800.94 and 42,666.68 is: 58,875.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,499.68 : 102,800.94 = 42,666.68 : x
  2. Step 2: Convert to fraction form
    74,499.68/102,800.94 = 42,666.68/x
  3. Step 3: Cross multiply
    74,499.68x = 102,800.94 × 42,666.68
  4. Step 4: Simplify right side
    74,499.68x = 4,386,174,810.68
  5. Step 5: Solve for x
    x = 4,386,174,810.68/74,499.68
  6. Step 6: Final answer
    x = 58,875.08

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1.5x scale

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.