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Finding the Fourth Proportional to 148,856.40, 223,457.40 and 89,758.80

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Solution

The fourth proportional to 148,856.40, 223,457.40 and 89,758.80 is: 134,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,856.40 : 223,457.40 = 89,758.80 : x
  2. Step 2: Convert to fraction form
    148,856.40/223,457.40 = 89,758.80/x
  3. Step 3: Cross multiply
    148,856.40x = 223,457.40 × 89,758.80
  4. Step 4: Simplify right side
    148,856.40x = 20,057,268,075.12
  5. Step 5: Solve for x
    x = 20,057,268,075.12/148,856.40
  6. Step 6: Final answer
    x = 134,742.40

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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.