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Finding the Fourth Proportional to 93,881.50, 129,556.50 and 56,164.66

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Solution

The fourth proportional to 93,881.50, 129,556.50 and 56,164.66 is: 77,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,881.50 : 129,556.50 = 56,164.66 : x
  2. Step 2: Convert to fraction form
    93,881.50/129,556.50 = 56,164.66/x
  3. Step 3: Cross multiply
    93,881.50x = 129,556.50 × 56,164.66
  4. Step 4: Simplify right side
    93,881.50x = 7,276,496,773.29
  5. Step 5: Solve for x
    x = 7,276,496,773.29/93,881.50
  6. Step 6: Final answer
    x = 77,507.25

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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.