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Finding the Fourth Proportional to 373,276, 559,970.40 and 120,472

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Solution

The fourth proportional to 373,276, 559,970.40 and 120,472 is: 180,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,276 : 559,970.40 = 120,472 : x
  2. Step 2: Convert to fraction form
    373,276/559,970.40 = 120,472/x
  3. Step 3: Cross multiply
    373,276x = 559,970.40 × 120,472
  4. Step 4: Simplify right side
    373,276x = 67,460,754,028.80
  5. Step 5: Solve for x
    x = 67,460,754,028.80/373,276
  6. Step 6: Final answer
    x = 180,726.20

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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.