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Finding the Fourth Proportional to 93,089.77, 128,460.05 and 50,648.47

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Solution

The fourth proportional to 93,089.77, 128,460.05 and 50,648.47 is: 69,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,089.77 : 128,460.05 = 50,648.47 : x
  2. Step 2: Convert to fraction form
    93,089.77/128,460.05 = 50,648.47/x
  3. Step 3: Cross multiply
    93,089.77x = 128,460.05 × 50,648.47
  4. Step 4: Simplify right side
    93,089.77x = 6,506,304,735.38
  5. Step 5: Solve for x
    x = 6,506,304,735.38/93,089.77
  6. Step 6: Final answer
    x = 69,892.80

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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.