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Finding the Fourth Proportional to 106,543.80, 147,030.12 and 58,802.40

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Solution

The fourth proportional to 106,543.80, 147,030.12 and 58,802.40 is: 81,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,543.80 : 147,030.12 = 58,802.40 : x
  2. Step 2: Convert to fraction form
    106,543.80/147,030.12 = 58,802.40/x
  3. Step 3: Cross multiply
    106,543.80x = 147,030.12 × 58,802.40
  4. Step 4: Simplify right side
    106,543.80x = 8,645,723,928.29
  5. Step 5: Solve for x
    x = 8,645,723,928.29/106,543.80
  6. Step 6: Final answer
    x = 81,147.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.