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Finding the Fourth Proportional to 93,314.88, 128,776.32 and 50,875.20

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Solution

The fourth proportional to 93,314.88, 128,776.32 and 50,875.20 is: 70,208.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,314.88 : 128,776.32 = 50,875.20 : x
  2. Step 2: Convert to fraction form
    93,314.88/128,776.32 = 50,875.20/x
  3. Step 3: Cross multiply
    93,314.88x = 128,776.32 × 50,875.20
  4. Step 4: Simplify right side
    93,314.88x = 6,551,521,035.26
  5. Step 5: Solve for x
    x = 6,551,521,035.26/93,314.88
  6. Step 6: Final answer
    x = 70,208.75

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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.