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Finding the Fourth Proportional to 93,263.22, 128,723.13 and 61,434.90

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Solution

The fourth proportional to 93,263.22, 128,723.13 and 61,434.90 is: 84,793.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,263.22 : 128,723.13 = 61,434.90 : x
  2. Step 2: Convert to fraction form
    93,263.22/128,723.13 = 61,434.90/x
  3. Step 3: Cross multiply
    93,263.22x = 128,723.13 × 61,434.90
  4. Step 4: Simplify right side
    93,263.22x = 7,908,092,619.24
  5. Step 5: Solve for x
    x = 7,908,092,619.24/93,263.22
  6. Step 6: Final answer
    x = 84,793.26

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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.