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Finding the Fourth Proportional to 149,270.59, 223,935.42 and 42,655.51

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Solution

The fourth proportional to 149,270.59, 223,935.42 and 42,655.51 is: 63,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,270.59 : 223,935.42 = 42,655.51 : x
  2. Step 2: Convert to fraction form
    149,270.59/223,935.42 = 42,655.51/x
  3. Step 3: Cross multiply
    149,270.59x = 223,935.42 × 42,655.51
  4. Step 4: Simplify right side
    149,270.59x = 9,552,079,547.16
  5. Step 5: Solve for x
    x = 9,552,079,547.16/149,270.59
  6. Step 6: Final answer
    x = 63,991.70

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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.