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Finding the Fourth Proportional to 106,803.40, 160,320.30 and 60,147.40

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Solution

The fourth proportional to 106,803.40, 160,320.30 and 60,147.40 is: 90,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,803.40 : 160,320.30 = 60,147.40 : x
  2. Step 2: Convert to fraction form
    106,803.40/160,320.30 = 60,147.40/x
  3. Step 3: Cross multiply
    106,803.40x = 160,320.30 × 60,147.40
  4. Step 4: Simplify right side
    106,803.40x = 9,642,849,212.22
  5. Step 5: Solve for x
    x = 9,642,849,212.22/106,803.40
  6. Step 6: Final answer
    x = 90,285.98

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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.