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Finding the Fourth Proportional to 93,349.71, 128,830.31 and 53,076.15

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Solution

The fourth proportional to 93,349.71, 128,830.31 and 53,076.15 is: 73,249.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,349.71 : 128,830.31 = 53,076.15 : x
  2. Step 2: Convert to fraction form
    93,349.71/128,830.31 = 53,076.15/x
  3. Step 3: Cross multiply
    93,349.71x = 128,830.31 × 53,076.15
  4. Step 4: Simplify right side
    93,349.71x = 6,837,816,592.73
  5. Step 5: Solve for x
    x = 6,837,816,592.73/93,349.71
  6. Step 6: Final answer
    x = 73,249.47

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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.