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Finding the Fourth Proportional to 99,055.28, 148,633.88 and 65,798.32

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Solution

The fourth proportional to 99,055.28, 148,633.88 and 65,798.32 is: 98,731.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,055.28 : 148,633.88 = 65,798.32 : x
  2. Step 2: Convert to fraction form
    99,055.28/148,633.88 = 65,798.32/x
  3. Step 3: Cross multiply
    99,055.28x = 148,633.88 × 65,798.32
  4. Step 4: Simplify right side
    99,055.28x = 9,779,859,599.08
  5. Step 5: Solve for x
    x = 9,779,859,599.08/99,055.28
  6. Step 6: Final answer
    x = 98,731.33

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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.