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Finding the Fourth Proportional to 93,607.25, 129,157.65 and 55,368.90

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Solution

The fourth proportional to 93,607.25, 129,157.65 and 55,368.90 is: 76,397.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,607.25 : 129,157.65 = 55,368.90 : x
  2. Step 2: Convert to fraction form
    93,607.25/129,157.65 = 55,368.90/x
  3. Step 3: Cross multiply
    93,607.25x = 129,157.65 × 55,368.90
  4. Step 4: Simplify right side
    93,607.25x = 7,151,317,007.09
  5. Step 5: Solve for x
    x = 7,151,317,007.09/93,607.25
  6. Step 6: Final answer
    x = 76,397.05

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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.