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Finding the Fourth Proportional to 93,407.50, 128,902.38 and 59,873.50

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Solution

The fourth proportional to 93,407.50, 128,902.38 and 59,873.50 is: 82,625.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,407.50 : 128,902.38 = 59,873.50 : x
  2. Step 2: Convert to fraction form
    93,407.50/128,902.38 = 59,873.50/x
  3. Step 3: Cross multiply
    93,407.50x = 128,902.38 × 59,873.50
  4. Step 4: Simplify right side
    93,407.50x = 7,717,836,648.93
  5. Step 5: Solve for x
    x = 7,717,836,648.93/93,407.50
  6. Step 6: Final answer
    x = 82,625.45

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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.