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Finding the Fourth Proportional to 93,354.74, 128,810.21 and 54,585.11

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Solution

The fourth proportional to 93,354.74, 128,810.21 and 54,585.11 is: 75,316.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,354.74 : 128,810.21 = 54,585.11 : x
  2. Step 2: Convert to fraction form
    93,354.74/128,810.21 = 54,585.11/x
  3. Step 3: Cross multiply
    93,354.74x = 128,810.21 × 54,585.11
  4. Step 4: Simplify right side
    93,354.74x = 7,031,118,974.38
  5. Step 5: Solve for x
    x = 7,031,118,974.38/93,354.74
  6. Step 6: Final answer
    x = 75,316.14

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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.