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Finding the Fourth Proportional to 249,666.78, 374,174.01 and 114,681.90

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Solution

The fourth proportional to 249,666.78, 374,174.01 and 114,681.90 is: 171,873.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,666.78 : 374,174.01 = 114,681.90 : x
  2. Step 2: Convert to fraction form
    249,666.78/374,174.01 = 114,681.90/x
  3. Step 3: Cross multiply
    249,666.78x = 374,174.01 × 114,681.90
  4. Step 4: Simplify right side
    249,666.78x = 42,910,986,397.42
  5. Step 5: Solve for x
    x = 42,910,986,397.42/249,666.78
  6. Step 6: Final answer
    x = 171,873.03

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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.