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Finding the Fourth Proportional to 148,866.40, 223,328.40 and 65,760.16

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Solution

The fourth proportional to 148,866.40, 223,328.40 and 65,760.16 is: 98,652.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,866.40 : 223,328.40 = 65,760.16 : x
  2. Step 2: Convert to fraction form
    148,866.40/223,328.40 = 65,760.16/x
  3. Step 3: Cross multiply
    148,866.40x = 223,328.40 × 65,760.16
  4. Step 4: Simplify right side
    148,866.40x = 14,686,111,316.54
  5. Step 5: Solve for x
    x = 14,686,111,316.54/148,866.40
  6. Step 6: Final answer
    x = 98,652.96

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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.