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Finding the Fourth Proportional to 98,302.80, 147,454.20 and 56,701.20

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Solution

The fourth proportional to 98,302.80, 147,454.20 and 56,701.20 is: 85,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,302.80 : 147,454.20 = 56,701.20 : x
  2. Step 2: Convert to fraction form
    98,302.80/147,454.20 = 56,701.20/x
  3. Step 3: Cross multiply
    98,302.80x = 147,454.20 × 56,701.20
  4. Step 4: Simplify right side
    98,302.80x = 8,360,830,085.04
  5. Step 5: Solve for x
    x = 8,360,830,085.04/98,302.80
  6. Step 6: Final answer
    x = 85,051.80

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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.