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Finding the Fourth Proportional to 141,487.51, 212,231.40 and 34,871.47

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Solution

The fourth proportional to 141,487.51, 212,231.40 and 34,871.47 is: 52,307.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,487.51 : 212,231.40 = 34,871.47 : x
  2. Step 2: Convert to fraction form
    141,487.51/212,231.40 = 34,871.47/x
  3. Step 3: Cross multiply
    141,487.51x = 212,231.40 × 34,871.47
  4. Step 4: Simplify right side
    141,487.51x = 7,400,820,898.16
  5. Step 5: Solve for x
    x = 7,400,820,898.16/141,487.51
  6. Step 6: Final answer
    x = 52,307.24

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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.