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Finding the Fourth Proportional to 99,122.96, 136,784.64 and 58,838.40

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Solution

The fourth proportional to 99,122.96, 136,784.64 and 58,838.40 is: 81,194.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,122.96 : 136,784.64 = 58,838.40 : x
  2. Step 2: Convert to fraction form
    99,122.96/136,784.64 = 58,838.40/x
  3. Step 3: Cross multiply
    99,122.96x = 136,784.64 × 58,838.40
  4. Step 4: Simplify right side
    99,122.96x = 8,048,189,362.18
  5. Step 5: Solve for x
    x = 8,048,189,362.18/99,122.96
  6. Step 6: Final answer
    x = 81,194.00

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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.