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Finding the Fourth Proportional to 98,880.53, 136,417.48 and 73,100.98

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Solution

The fourth proportional to 98,880.53, 136,417.48 and 73,100.98 is: 100,851.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,880.53 : 136,417.48 = 73,100.98 : x
  2. Step 2: Convert to fraction form
    98,880.53/136,417.48 = 73,100.98/x
  3. Step 3: Cross multiply
    98,880.53x = 136,417.48 × 73,100.98
  4. Step 4: Simplify right side
    98,880.53x = 9,972,251,477.13
  5. Step 5: Solve for x
    x = 9,972,251,477.13/98,880.53
  6. Step 6: Final answer
    x = 100,851.52

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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.