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Finding the Fourth Proportional to 98,818.75, 136,368.91 and 53,495.56

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Solution

The fourth proportional to 98,818.75, 136,368.91 and 53,495.56 is: 73,823.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,818.75 : 136,368.91 = 53,495.56 : x
  2. Step 2: Convert to fraction form
    98,818.75/136,368.91 = 53,495.56/x
  3. Step 3: Cross multiply
    98,818.75x = 136,368.91 × 53,495.56
  4. Step 4: Simplify right side
    98,818.75x = 7,295,131,444.37
  5. Step 5: Solve for x
    x = 7,295,131,444.37/98,818.75
  6. Step 6: Final answer
    x = 73,823.35

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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.