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Finding the Fourth Proportional to 93,117.61, 128,505.21 and 52,833.07

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Solution

The fourth proportional to 93,117.61, 128,505.21 and 52,833.07 is: 72,911.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,117.61 : 128,505.21 = 52,833.07 : x
  2. Step 2: Convert to fraction form
    93,117.61/128,505.21 = 52,833.07/x
  3. Step 3: Cross multiply
    93,117.61x = 128,505.21 × 52,833.07
  4. Step 4: Simplify right side
    93,117.61x = 6,789,324,112.77
  5. Step 5: Solve for x
    x = 6,789,324,112.77/93,117.61
  6. Step 6: Final answer
    x = 72,911.28

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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.