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Finding the Fourth Proportional to 164,688.30, 247,032.45 and 112,200.30

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Solution

The fourth proportional to 164,688.30, 247,032.45 and 112,200.30 is: 168,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,688.30 : 247,032.45 = 112,200.30 : x
  2. Step 2: Convert to fraction form
    164,688.30/247,032.45 = 112,200.30/x
  3. Step 3: Cross multiply
    164,688.30x = 247,032.45 × 112,200.30
  4. Step 4: Simplify right side
    164,688.30x = 27,717,114,999.74
  5. Step 5: Solve for x
    x = 27,717,114,999.74/164,688.30
  6. Step 6: Final answer
    x = 168,300.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.