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Finding the Fourth Proportional to 92,880.49, 128,176.56 and 52,593.16

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Solution

The fourth proportional to 92,880.49, 128,176.56 and 52,593.16 is: 72,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,880.49 : 128,176.56 = 52,593.16 : x
  2. Step 2: Convert to fraction form
    92,880.49/128,176.56 = 52,593.16/x
  3. Step 3: Cross multiply
    92,880.49x = 128,176.56 × 52,593.16
  4. Step 4: Simplify right side
    92,880.49x = 6,741,210,328.33
  5. Step 5: Solve for x
    x = 6,741,210,328.33/92,880.49
  6. Step 6: Final answer
    x = 72,579.40

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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.