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Finding the Fourth Proportional to 93,031.71, 128,394.59 and 52,207.08

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Solution

The fourth proportional to 93,031.71, 128,394.59 and 52,207.08 is: 72,051.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,031.71 : 128,394.59 = 52,207.08 : x
  2. Step 2: Convert to fraction form
    93,031.71/128,394.59 = 52,207.08/x
  3. Step 3: Cross multiply
    93,031.71x = 128,394.59 × 52,207.08
  4. Step 4: Simplify right side
    93,031.71x = 6,703,106,370.66
  5. Step 5: Solve for x
    x = 6,703,106,370.66/93,031.71
  6. Step 6: Final answer
    x = 72,051.85

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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.