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Finding the Fourth Proportional to 335,411.61, 503,120.93 and 98,758.77

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Solution

The fourth proportional to 335,411.61, 503,120.93 and 98,758.77 is: 148,139.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,411.61 : 503,120.93 = 98,758.77 : x
  2. Step 2: Convert to fraction form
    335,411.61/503,120.93 = 98,758.77/x
  3. Step 3: Cross multiply
    335,411.61x = 503,120.93 × 98,758.77
  4. Step 4: Simplify right side
    335,411.61x = 49,687,603,714.26
  5. Step 5: Solve for x
    x = 49,687,603,714.26/335,411.61
  6. Step 6: Final answer
    x = 148,139.19

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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.