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Finding the Fourth Proportional to 138,075.72, 207,070.22 and 59,168.84

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Solution

The fourth proportional to 138,075.72, 207,070.22 and 59,168.84 is: 88,734.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,075.72 : 207,070.22 = 59,168.84 : x
  2. Step 2: Convert to fraction form
    138,075.72/207,070.22 = 59,168.84/x
  3. Step 3: Cross multiply
    138,075.72x = 207,070.22 × 59,168.84
  4. Step 4: Simplify right side
    138,075.72x = 12,252,104,715.94
  5. Step 5: Solve for x
    x = 12,252,104,715.94/138,075.72
  6. Step 6: Final answer
    x = 88,734.68

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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.