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Finding the Fourth Proportional to 125,541, 173,261.94 and 72,549

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Solution

The fourth proportional to 125,541, 173,261.94 and 72,549 is: 100,126.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,541 : 173,261.94 = 72,549 : x
  2. Step 2: Convert to fraction form
    125,541/173,261.94 = 72,549/x
  3. Step 3: Cross multiply
    125,541x = 173,261.94 × 72,549
  4. Step 4: Simplify right side
    125,541x = 12,569,980,485.06
  5. Step 5: Solve for x
    x = 12,569,980,485.06/125,541
  6. Step 6: Final answer
    x = 100,126.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.