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Finding the Fourth Proportional to 93,114.16, 128,500.40 and 50,675.52

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Solution

The fourth proportional to 93,114.16, 128,500.40 and 50,675.52 is: 69,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,114.16 : 128,500.40 = 50,675.52 : x
  2. Step 2: Convert to fraction form
    93,114.16/128,500.40 = 50,675.52/x
  3. Step 3: Cross multiply
    93,114.16x = 128,500.40 × 50,675.52
  4. Step 4: Simplify right side
    93,114.16x = 6,511,824,590.21
  5. Step 5: Solve for x
    x = 6,511,824,590.21/93,114.16
  6. Step 6: Final answer
    x = 69,933.77

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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.