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Finding the Fourth Proportional to 93,102.09, 128,459.01 and 52,806.57

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Solution

The fourth proportional to 93,102.09, 128,459.01 and 52,806.57 is: 72,860.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,102.09 : 128,459.01 = 52,806.57 : x
  2. Step 2: Convert to fraction form
    93,102.09/128,459.01 = 52,806.57/x
  3. Step 3: Cross multiply
    93,102.09x = 128,459.01 × 52,806.57
  4. Step 4: Simplify right side
    93,102.09x = 6,783,479,703.70
  5. Step 5: Solve for x
    x = 6,783,479,703.70/93,102.09
  6. Step 6: Final answer
    x = 72,860.66

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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.