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Finding the Fourth Proportional to 508,075.73, 762,113.94 and 129,024.89

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Solution

The fourth proportional to 508,075.73, 762,113.94 and 129,024.89 is: 193,537.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,075.73 : 762,113.94 = 129,024.89 : x
  2. Step 2: Convert to fraction form
    508,075.73/762,113.94 = 129,024.89/x
  3. Step 3: Cross multiply
    508,075.73x = 762,113.94 × 129,024.89
  4. Step 4: Simplify right side
    508,075.73x = 98,331,663,465.40
  5. Step 5: Solve for x
    x = 98,331,663,465.40/508,075.73
  6. Step 6: Final answer
    x = 193,537.42

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1.5x scale

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.