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Finding the Fourth Proportional to 93,611.51, 129,251.54 and 57,850.55

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Solution

The fourth proportional to 93,611.51, 129,251.54 and 57,850.55 is: 79,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,611.51 : 129,251.54 = 57,850.55 : x
  2. Step 2: Convert to fraction form
    93,611.51/129,251.54 = 57,850.55/x
  3. Step 3: Cross multiply
    93,611.51x = 129,251.54 × 57,850.55
  4. Step 4: Simplify right side
    93,611.51x = 7,477,272,677.35
  5. Step 5: Solve for x
    x = 7,477,272,677.35/93,611.51
  6. Step 6: Final answer
    x = 79,875.57

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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.