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Finding the Fourth Proportional to 93,156.86, 128,557.86 and 50,716.10

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Solution

The fourth proportional to 93,156.86, 128,557.86 and 50,716.10 is: 69,988.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,156.86 : 128,557.86 = 50,716.10 : x
  2. Step 2: Convert to fraction form
    93,156.86/128,557.86 = 50,716.10/x
  3. Step 3: Cross multiply
    93,156.86x = 128,557.86 × 50,716.10
  4. Step 4: Simplify right side
    93,156.86x = 6,519,953,283.55
  5. Step 5: Solve for x
    x = 6,519,953,283.55/93,156.86
  6. Step 6: Final answer
    x = 69,988.98

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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.