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Finding the Fourth Proportional to 93,001.71, 128,345.69 and 57,184.81

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Solution

The fourth proportional to 93,001.71, 128,345.69 and 57,184.81 is: 78,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,001.71 : 128,345.69 = 57,184.81 : x
  2. Step 2: Convert to fraction form
    93,001.71/128,345.69 = 57,184.81/x
  3. Step 3: Cross multiply
    93,001.71x = 128,345.69 × 57,184.81
  4. Step 4: Simplify right side
    93,001.71x = 7,339,423,192.49
  5. Step 5: Solve for x
    x = 7,339,423,192.49/93,001.71
  6. Step 6: Final answer
    x = 78,917.07

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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.