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Finding the Fourth Proportional to 98,480, 147,596.76 and 42,253.76

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Solution

The fourth proportional to 98,480, 147,596.76 and 42,253.76 is: 63,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,480 : 147,596.76 = 42,253.76 : x
  2. Step 2: Convert to fraction form
    98,480/147,596.76 = 42,253.76/x
  3. Step 3: Cross multiply
    98,480x = 147,596.76 × 42,253.76
  4. Step 4: Simplify right side
    98,480x = 6,236,518,073.82
  5. Step 5: Solve for x
    x = 6,236,518,073.82/98,480
  6. Step 6: Final answer
    x = 63,327.76

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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.