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Finding the Fourth Proportional to 140,559.60, 210,839.40 and 93,320.40

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Solution

The fourth proportional to 140,559.60, 210,839.40 and 93,320.40 is: 139,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,559.60 : 210,839.40 = 93,320.40 : x
  2. Step 2: Convert to fraction form
    140,559.60/210,839.40 = 93,320.40/x
  3. Step 3: Cross multiply
    140,559.60x = 210,839.40 × 93,320.40
  4. Step 4: Simplify right side
    140,559.60x = 19,675,617,143.76
  5. Step 5: Solve for x
    x = 19,675,617,143.76/140,559.60
  6. Step 6: Final answer
    x = 139,980.60

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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.