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Finding the Fourth Proportional to 98,946.80, 136,522.80 and 58,670.46

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Solution

The fourth proportional to 98,946.80, 136,522.80 and 58,670.46 is: 80,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,946.80 : 136,522.80 = 58,670.46 : x
  2. Step 2: Convert to fraction form
    98,946.80/136,522.80 = 58,670.46/x
  3. Step 3: Cross multiply
    98,946.80x = 136,522.80 × 58,670.46
  4. Step 4: Simplify right side
    98,946.80x = 8,009,855,476.49
  5. Step 5: Solve for x
    x = 8,009,855,476.49/98,946.80
  6. Step 6: Final answer
    x = 80,951.13

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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.