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Finding the Fourth Proportional to 125,307.40, 187,968.30 and 36,574.60

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Solution

The fourth proportional to 125,307.40, 187,968.30 and 36,574.60 is: 54,864.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,307.40 : 187,968.30 = 36,574.60 : x
  2. Step 2: Convert to fraction form
    125,307.40/187,968.30 = 36,574.60/x
  3. Step 3: Cross multiply
    125,307.40x = 187,968.30 × 36,574.60
  4. Step 4: Simplify right side
    125,307.40x = 6,874,865,385.18
  5. Step 5: Solve for x
    x = 6,874,865,385.18/125,307.40
  6. Step 6: Final answer
    x = 54,864.00

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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.