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Finding the Fourth Proportional to 93,442.98, 128,950.26 and 53,155.80

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Solution

The fourth proportional to 93,442.98, 128,950.26 and 53,155.80 is: 73,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,442.98 : 128,950.26 = 53,155.80 : x
  2. Step 2: Convert to fraction form
    93,442.98/128,950.26 = 53,155.80/x
  3. Step 3: Cross multiply
    93,442.98x = 128,950.26 × 53,155.80
  4. Step 4: Simplify right side
    93,442.98x = 6,854,454,230.51
  5. Step 5: Solve for x
    x = 6,854,454,230.51/93,442.98
  6. Step 6: Final answer
    x = 73,354.41

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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.