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Finding the Fourth Proportional to 540,730.40, 811,141.63 and 141,370.53

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Solution

The fourth proportional to 540,730.40, 811,141.63 and 141,370.53 is: 212,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,730.40 : 811,141.63 = 141,370.53 : x
  2. Step 2: Convert to fraction form
    540,730.40/811,141.63 = 141,370.53/x
  3. Step 3: Cross multiply
    540,730.40x = 811,141.63 × 141,370.53
  4. Step 4: Simplify right side
    540,730.40x = 114,671,523,305.63
  5. Step 5: Solve for x
    x = 114,671,523,305.63/540,730.40
  6. Step 6: Final answer
    x = 212,067.83

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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.