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Finding the Fourth Proportional to 116,853.40, 175,357.74 and 42,981.40

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Solution

The fourth proportional to 116,853.40, 175,357.74 and 42,981.40 is: 64,500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,853.40 : 175,357.74 = 42,981.40 : x
  2. Step 2: Convert to fraction form
    116,853.40/175,357.74 = 42,981.40/x
  3. Step 3: Cross multiply
    116,853.40x = 175,357.74 × 42,981.40
  4. Step 4: Simplify right side
    116,853.40x = 7,537,121,166.04
  5. Step 5: Solve for x
    x = 7,537,121,166.04/116,853.40
  6. Step 6: Final answer
    x = 64,500.66

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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.