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Finding the Fourth Proportional to 219,009.60, 302,232.60 and 118,407.60

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Solution

The fourth proportional to 219,009.60, 302,232.60 and 118,407.60 is: 163,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,009.60 : 302,232.60 = 118,407.60 : x
  2. Step 2: Convert to fraction form
    219,009.60/302,232.60 = 118,407.60/x
  3. Step 3: Cross multiply
    219,009.60x = 302,232.60 × 118,407.60
  4. Step 4: Simplify right side
    219,009.60x = 35,786,636,807.76
  5. Step 5: Solve for x
    x = 35,786,636,807.76/219,009.60
  6. Step 6: Final answer
    x = 163,402.14

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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.