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Finding the Fourth Proportional to 107,031.80, 160,547.70 and 65,559.80

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Solution

The fourth proportional to 107,031.80, 160,547.70 and 65,559.80 is: 98,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,031.80 : 160,547.70 = 65,559.80 : x
  2. Step 2: Convert to fraction form
    107,031.80/160,547.70 = 65,559.80/x
  3. Step 3: Cross multiply
    107,031.80x = 160,547.70 × 65,559.80
  4. Step 4: Simplify right side
    107,031.80x = 10,525,475,102.46
  5. Step 5: Solve for x
    x = 10,525,475,102.46/107,031.80
  6. Step 6: Final answer
    x = 98,339.70

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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.