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Finding the Fourth Proportional to 93,559.60, 129,129.96 and 55,854.64

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Solution

The fourth proportional to 93,559.60, 129,129.96 and 55,854.64 is: 77,089.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,559.60 : 129,129.96 = 55,854.64 : x
  2. Step 2: Convert to fraction form
    93,559.60/129,129.96 = 55,854.64/x
  3. Step 3: Cross multiply
    93,559.60x = 129,129.96 × 55,854.64
  4. Step 4: Simplify right side
    93,559.60x = 7,212,507,429.01
  5. Step 5: Solve for x
    x = 7,212,507,429.01/93,559.60
  6. Step 6: Final answer
    x = 77,089.98

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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.