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Finding the Fourth Proportional to 107,075.80, 160,613.70 and 65,603.80

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Solution

The fourth proportional to 107,075.80, 160,613.70 and 65,603.80 is: 98,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,075.80 : 160,613.70 = 65,603.80 : x
  2. Step 2: Convert to fraction form
    107,075.80/160,613.70 = 65,603.80/x
  3. Step 3: Cross multiply
    107,075.80x = 160,613.70 × 65,603.80
  4. Step 4: Simplify right side
    107,075.80x = 10,536,869,052.06
  5. Step 5: Solve for x
    x = 10,536,869,052.06/107,075.80
  6. Step 6: Final answer
    x = 98,405.70

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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.