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Finding the Fourth Proportional to 357,302.95, 535,613.28 and 132,603.28

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Solution

The fourth proportional to 357,302.95, 535,613.28 and 132,603.28 is: 198,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,302.95 : 535,613.28 = 132,603.28 : x
  2. Step 2: Convert to fraction form
    357,302.95/535,613.28 = 132,603.28/x
  3. Step 3: Cross multiply
    357,302.95x = 535,613.28 × 132,603.28
  4. Step 4: Simplify right side
    357,302.95x = 71,024,075,903.26
  5. Step 5: Solve for x
    x = 71,024,075,903.26/357,302.95
  6. Step 6: Final answer
    x = 198,778.31

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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.