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Finding the Fourth Proportional to 357,266.89, 536,005.61 and 143,925.02

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Solution

The fourth proportional to 357,266.89, 536,005.61 and 143,925.02 is: 215,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,266.89 : 536,005.61 = 143,925.02 : x
  2. Step 2: Convert to fraction form
    357,266.89/536,005.61 = 143,925.02/x
  3. Step 3: Cross multiply
    357,266.89x = 536,005.61 × 143,925.02
  4. Step 4: Simplify right side
    357,266.89x = 77,144,618,139.36
  5. Step 5: Solve for x
    x = 77,144,618,139.36/357,266.89
  6. Step 6: Final answer
    x = 215,929.94

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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.