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Finding the Fourth Proportional to 93,790.69, 129,419.09 and 53,502.05

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Solution

The fourth proportional to 93,790.69, 129,419.09 and 53,502.05 is: 73,825.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,790.69 : 129,419.09 = 53,502.05 : x
  2. Step 2: Convert to fraction form
    93,790.69/129,419.09 = 53,502.05/x
  3. Step 3: Cross multiply
    93,790.69x = 129,419.09 × 53,502.05
  4. Step 4: Simplify right side
    93,790.69x = 6,924,186,110.79
  5. Step 5: Solve for x
    x = 6,924,186,110.79/93,790.69
  6. Step 6: Final answer
    x = 73,825.94

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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.