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Finding the Fourth Proportional to 401,681.52, 602,530.99 and 145,536.95

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Solution

The fourth proportional to 401,681.52, 602,530.99 and 145,536.95 is: 218,308.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,681.52 : 602,530.99 = 145,536.95 : x
  2. Step 2: Convert to fraction form
    401,681.52/602,530.99 = 145,536.95/x
  3. Step 3: Cross multiply
    401,681.52x = 602,530.99 × 145,536.95
  4. Step 4: Simplify right side
    401,681.52x = 87,690,523,707.57
  5. Step 5: Solve for x
    x = 87,690,523,707.57/401,681.52
  6. Step 6: Final answer
    x = 218,308.58

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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.