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Finding the Fourth Proportional to 93,058.88, 128,421.25 and 50,618.32

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Solution

The fourth proportional to 93,058.88, 128,421.25 and 50,618.32 is: 69,853.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,058.88 : 128,421.25 = 50,618.32 : x
  2. Step 2: Convert to fraction form
    93,058.88/128,421.25 = 50,618.32/x
  3. Step 3: Cross multiply
    93,058.88x = 128,421.25 × 50,618.32
  4. Step 4: Simplify right side
    93,058.88x = 6,500,467,479.70
  5. Step 5: Solve for x
    x = 6,500,467,479.70/93,058.88
  6. Step 6: Final answer
    x = 69,853.28

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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.