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Finding the Fourth Proportional to 148,859.40, 223,289.10 and 89,810.40

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Solution

The fourth proportional to 148,859.40, 223,289.10 and 89,810.40 is: 134,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,859.40 : 223,289.10 = 89,810.40 : x
  2. Step 2: Convert to fraction form
    148,859.40/223,289.10 = 89,810.40/x
  3. Step 3: Cross multiply
    148,859.40x = 223,289.10 × 89,810.40
  4. Step 4: Simplify right side
    148,859.40x = 20,053,683,386.64
  5. Step 5: Solve for x
    x = 20,053,683,386.64/148,859.40
  6. Step 6: Final answer
    x = 134,715.60

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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.