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Finding the Fourth Proportional to 112,008.40, 168,061.20 and 56,604.40

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Solution

The fourth proportional to 112,008.40, 168,061.20 and 56,604.40 is: 84,931.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,008.40 : 168,061.20 = 56,604.40 : x
  2. Step 2: Convert to fraction form
    112,008.40/168,061.20 = 56,604.40/x
  3. Step 3: Cross multiply
    112,008.40x = 168,061.20 × 56,604.40
  4. Step 4: Simplify right side
    112,008.40x = 9,513,003,389.28
  5. Step 5: Solve for x
    x = 9,513,003,389.28/112,008.40
  6. Step 6: Final answer
    x = 84,931.16

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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.