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Finding the Fourth Proportional to 250,248.32, 375,389.76 and 72,756.80

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Solution

The fourth proportional to 250,248.32, 375,389.76 and 72,756.80 is: 109,140.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,248.32 : 375,389.76 = 72,756.80 : x
  2. Step 2: Convert to fraction form
    250,248.32/375,389.76 = 72,756.80/x
  3. Step 3: Cross multiply
    250,248.32x = 375,389.76 × 72,756.80
  4. Step 4: Simplify right side
    250,248.32x = 27,312,157,690.37
  5. Step 5: Solve for x
    x = 27,312,157,690.37/250,248.32
  6. Step 6: Final answer
    x = 109,140.22

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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.