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Finding the Fourth Proportional to 98,686.64, 136,024.44 and 73,526.96

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Solution

The fourth proportional to 98,686.64, 136,024.44 and 73,526.96 is: 101,345.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,686.64 : 136,024.44 = 73,526.96 : x
  2. Step 2: Convert to fraction form
    98,686.64/136,024.44 = 73,526.96/x
  3. Step 3: Cross multiply
    98,686.64x = 136,024.44 × 73,526.96
  4. Step 4: Simplify right side
    98,686.64x = 10,001,463,558.90
  5. Step 5: Solve for x
    x = 10,001,463,558.90/98,686.64
  6. Step 6: Final answer
    x = 101,345.67

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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.