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Finding the Fourth Proportional to 145,920.76, 218,890.32 and 46,084.88

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Solution

The fourth proportional to 145,920.76, 218,890.32 and 46,084.88 is: 69,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,920.76 : 218,890.32 = 46,084.88 : x
  2. Step 2: Convert to fraction form
    145,920.76/218,890.32 = 46,084.88/x
  3. Step 3: Cross multiply
    145,920.76x = 218,890.32 × 46,084.88
  4. Step 4: Simplify right side
    145,920.76x = 10,087,534,130.36
  5. Step 5: Solve for x
    x = 10,087,534,130.36/145,920.76
  6. Step 6: Final answer
    x = 69,130.22

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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.