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Finding the Fourth Proportional to 98,883.82, 136,484.10 and 56,466.96

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Solution

The fourth proportional to 98,883.82, 136,484.10 and 56,466.96 is: 77,938.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,883.82 : 136,484.10 = 56,466.96 : x
  2. Step 2: Convert to fraction form
    98,883.82/136,484.10 = 56,466.96/x
  3. Step 3: Cross multiply
    98,883.82x = 136,484.10 × 56,466.96
  4. Step 4: Simplify right side
    98,883.82x = 7,706,842,215.34
  5. Step 5: Solve for x
    x = 7,706,842,215.34/98,883.82
  6. Step 6: Final answer
    x = 77,938.35

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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.