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Finding the Fourth Proportional to 125,235.16, 187,926.45 and 46,404.34

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Solution

The fourth proportional to 125,235.16, 187,926.45 and 46,404.34 is: 69,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,235.16 : 187,926.45 = 46,404.34 : x
  2. Step 2: Convert to fraction form
    125,235.16/187,926.45 = 46,404.34/x
  3. Step 3: Cross multiply
    125,235.16x = 187,926.45 × 46,404.34
  4. Step 4: Simplify right side
    125,235.16x = 8,720,602,880.79
  5. Step 5: Solve for x
    x = 8,720,602,880.79/125,235.16
  6. Step 6: Final answer
    x = 69,633.82

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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.