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Finding the Fourth Proportional to 93,656.60, 129,235.50 and 55,417.32

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Solution

The fourth proportional to 93,656.60, 129,235.50 and 55,417.32 is: 76,469.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,656.60 : 129,235.50 = 55,417.32 : x
  2. Step 2: Convert to fraction form
    93,656.60/129,235.50 = 55,417.32/x
  3. Step 3: Cross multiply
    93,656.60x = 129,235.50 × 55,417.32
  4. Step 4: Simplify right side
    93,656.60x = 7,161,885,058.86
  5. Step 5: Solve for x
    x = 7,161,885,058.86/93,656.60
  6. Step 6: Final answer
    x = 76,469.62

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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.