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Finding the Fourth Proportional to 93,992.40, 129,664.80 and 56,259.36

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Solution

The fourth proportional to 93,992.40, 129,664.80 and 56,259.36 is: 77,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,992.40 : 129,664.80 = 56,259.36 : x
  2. Step 2: Convert to fraction form
    93,992.40/129,664.80 = 56,259.36/x
  3. Step 3: Cross multiply
    93,992.40x = 129,664.80 × 56,259.36
  4. Step 4: Simplify right side
    93,992.40x = 7,294,858,662.53
  5. Step 5: Solve for x
    x = 7,294,858,662.53/93,992.40
  6. Step 6: Final answer
    x = 77,611.15

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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.