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Finding the Fourth Proportional to 93,228.97, 139,965.42 and 55,347.40

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Solution

The fourth proportional to 93,228.97, 139,965.42 and 55,347.40 is: 83,093.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,228.97 : 139,965.42 = 55,347.40 : x
  2. Step 2: Convert to fraction form
    93,228.97/139,965.42 = 55,347.40/x
  3. Step 3: Cross multiply
    93,228.97x = 139,965.42 × 55,347.40
  4. Step 4: Simplify right side
    93,228.97x = 7,746,721,460.26
  5. Step 5: Solve for x
    x = 7,746,721,460.26/93,228.97
  6. Step 6: Final answer
    x = 83,093.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.