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Finding the Fourth Proportional to 219,483.68, 302,886.72 and 118,881.92

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Solution

The fourth proportional to 219,483.68, 302,886.72 and 118,881.92 is: 164,056.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,483.68 : 302,886.72 = 118,881.92 : x
  2. Step 2: Convert to fraction form
    219,483.68/302,886.72 = 118,881.92/x
  3. Step 3: Cross multiply
    219,483.68x = 302,886.72 × 118,881.92
  4. Step 4: Simplify right side
    219,483.68x = 36,007,754,816.10
  5. Step 5: Solve for x
    x = 36,007,754,816.10/219,483.68
  6. Step 6: Final answer
    x = 164,056.64

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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.