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Finding the Fourth Proportional to 99,124.53, 148,834.42 and 40,075.53

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Solution

The fourth proportional to 99,124.53, 148,834.42 and 40,075.53 is: 60,172.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,124.53 : 148,834.42 = 40,075.53 : x
  2. Step 2: Convert to fraction form
    99,124.53/148,834.42 = 40,075.53/x
  3. Step 3: Cross multiply
    99,124.53x = 148,834.42 × 40,075.53
  4. Step 4: Simplify right side
    99,124.53x = 5,964,618,263.74
  5. Step 5: Solve for x
    x = 5,964,618,263.74/99,124.53
  6. Step 6: Final answer
    x = 60,172.98

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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.