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Finding the Fourth Proportional to 93,342.08, 128,808.72 and 53,055.08

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Solution

The fourth proportional to 93,342.08, 128,808.72 and 53,055.08 is: 73,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,342.08 : 128,808.72 = 53,055.08 : x
  2. Step 2: Convert to fraction form
    93,342.08/128,808.72 = 53,055.08/x
  3. Step 3: Cross multiply
    93,342.08x = 128,808.72 × 53,055.08
  4. Step 4: Simplify right side
    93,342.08x = 6,833,956,944.30
  5. Step 5: Solve for x
    x = 6,833,956,944.30/93,342.08
  6. Step 6: Final answer
    x = 73,214.11

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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.