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Finding the Fourth Proportional to 125,075.70, 187,447.68 and 65,953.22

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Solution

The fourth proportional to 125,075.70, 187,447.68 and 65,953.22 is: 98,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,075.70 : 187,447.68 = 65,953.22 : x
  2. Step 2: Convert to fraction form
    125,075.70/187,447.68 = 65,953.22/x
  3. Step 3: Cross multiply
    125,075.70x = 187,447.68 × 65,953.22
  4. Step 4: Simplify right side
    125,075.70x = 12,362,777,140.29
  5. Step 5: Solve for x
    x = 12,362,777,140.29/125,075.70
  6. Step 6: Final answer
    x = 98,842.36

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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.