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Finding the Fourth Proportional to 98,802.86, 136,426.54 and 91,246.42

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Solution

The fourth proportional to 98,802.86, 136,426.54 and 91,246.42 is: 125,992.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,802.86 : 136,426.54 = 91,246.42 : x
  2. Step 2: Convert to fraction form
    98,802.86/136,426.54 = 91,246.42/x
  3. Step 3: Cross multiply
    98,802.86x = 136,426.54 × 91,246.42
  4. Step 4: Simplify right side
    98,802.86x = 12,448,432,798.80
  5. Step 5: Solve for x
    x = 12,448,432,798.80/98,802.86
  6. Step 6: Final answer
    x = 125,992.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.