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Finding the Fourth Proportional to 92,792.77, 128,020.59 and 52,506.12

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Solution

The fourth proportional to 92,792.77, 128,020.59 and 52,506.12 is: 72,439.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,792.77 : 128,020.59 = 52,506.12 : x
  2. Step 2: Convert to fraction form
    92,792.77/128,020.59 = 52,506.12/x
  3. Step 3: Cross multiply
    92,792.77x = 128,020.59 × 52,506.12
  4. Step 4: Simplify right side
    92,792.77x = 6,721,864,461.01
  5. Step 5: Solve for x
    x = 6,721,864,461.01/92,792.77
  6. Step 6: Final answer
    x = 72,439.53

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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.