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Finding the Fourth Proportional to 98,263.74, 135,607.59 and 55,829.46

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Solution

The fourth proportional to 98,263.74, 135,607.59 and 55,829.46 is: 77,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,263.74 : 135,607.59 = 55,829.46 : x
  2. Step 2: Convert to fraction form
    98,263.74/135,607.59 = 55,829.46/x
  3. Step 3: Cross multiply
    98,263.74x = 135,607.59 × 55,829.46
  4. Step 4: Simplify right side
    98,263.74x = 7,570,898,521.60
  5. Step 5: Solve for x
    x = 7,570,898,521.60/98,263.74
  6. Step 6: Final answer
    x = 77,046.72

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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.