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Finding the Fourth Proportional to 117,693.30, 162,430.32 and 69,946.22

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Solution

The fourth proportional to 117,693.30, 162,430.32 and 69,946.22 is: 96,533.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,693.30 : 162,430.32 = 69,946.22 : x
  2. Step 2: Convert to fraction form
    117,693.30/162,430.32 = 69,946.22/x
  3. Step 3: Cross multiply
    117,693.30x = 162,430.32 × 69,946.22
  4. Step 4: Simplify right side
    117,693.30x = 11,361,386,897.39
  5. Step 5: Solve for x
    x = 11,361,386,897.39/117,693.30
  6. Step 6: Final answer
    x = 96,533.85

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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.