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Finding the Fourth Proportional to 93,122.88, 128,437.50 and 62,860.28

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Solution

The fourth proportional to 93,122.88, 128,437.50 and 62,860.28 is: 86,698.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,122.88 : 128,437.50 = 62,860.28 : x
  2. Step 2: Convert to fraction form
    93,122.88/128,437.50 = 62,860.28/x
  3. Step 3: Cross multiply
    93,122.88x = 128,437.50 × 62,860.28
  4. Step 4: Simplify right side
    93,122.88x = 8,073,617,212.50
  5. Step 5: Solve for x
    x = 8,073,617,212.50/93,122.88
  6. Step 6: Final answer
    x = 86,698.53

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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.