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Finding the Fourth Proportional to 93,155.55, 128,552.62 and 54,400.03

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Solution

The fourth proportional to 93,155.55, 128,552.62 and 54,400.03 is: 75,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,155.55 : 128,552.62 = 54,400.03 : x
  2. Step 2: Convert to fraction form
    93,155.55/128,552.62 = 54,400.03/x
  3. Step 3: Cross multiply
    93,155.55x = 128,552.62 × 54,400.03
  4. Step 4: Simplify right side
    93,155.55x = 6,993,266,384.58
  5. Step 5: Solve for x
    x = 6,993,266,384.58/93,155.55
  6. Step 6: Final answer
    x = 75,070.85

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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.