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Finding the Fourth Proportional to 93,386.76, 128,873.56 and 50,945.29

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Solution

The fourth proportional to 93,386.76, 128,873.56 and 50,945.29 is: 70,304.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,386.76 : 128,873.56 = 50,945.29 : x
  2. Step 2: Convert to fraction form
    93,386.76/128,873.56 = 50,945.29/x
  3. Step 3: Cross multiply
    93,386.76x = 128,873.56 × 50,945.29
  4. Step 4: Simplify right side
    93,386.76x = 6,565,500,887.53
  5. Step 5: Solve for x
    x = 6,565,500,887.53/93,386.76
  6. Step 6: Final answer
    x = 70,304.41

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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.