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Finding the Fourth Proportional to 98,606.76, 136,077.32 and 53,894.76

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Solution

The fourth proportional to 98,606.76, 136,077.32 and 53,894.76 is: 74,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,606.76 : 136,077.32 = 53,894.76 : x
  2. Step 2: Convert to fraction form
    98,606.76/136,077.32 = 53,894.76/x
  3. Step 3: Cross multiply
    98,606.76x = 136,077.32 × 53,894.76
  4. Step 4: Simplify right side
    98,606.76x = 7,333,854,502.84
  5. Step 5: Solve for x
    x = 7,333,854,502.84/98,606.76
  6. Step 6: Final answer
    x = 74,374.76

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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.