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Finding the Fourth Proportional to 335,545.80, 503,145.90 and 125,075.40

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Solution

The fourth proportional to 335,545.80, 503,145.90 and 125,075.40 is: 187,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,545.80 : 503,145.90 = 125,075.40 : x
  2. Step 2: Convert to fraction form
    335,545.80/503,145.90 = 125,075.40/x
  3. Step 3: Cross multiply
    335,545.80x = 503,145.90 × 125,075.40
  4. Step 4: Simplify right side
    335,545.80x = 62,931,174,700.86
  5. Step 5: Solve for x
    x = 62,931,174,700.86/335,545.80
  6. Step 6: Final answer
    x = 187,548.69

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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.