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Finding the Fourth Proportional to 166,477.60, 249,716.40 and 163,712.80

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Solution

The fourth proportional to 166,477.60, 249,716.40 and 163,712.80 is: 245,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,477.60 : 249,716.40 = 163,712.80 : x
  2. Step 2: Convert to fraction form
    166,477.60/249,716.40 = 163,712.80/x
  3. Step 3: Cross multiply
    166,477.60x = 249,716.40 × 163,712.80
  4. Step 4: Simplify right side
    166,477.60x = 40,881,771,049.92
  5. Step 5: Solve for x
    x = 40,881,771,049.92/166,477.60
  6. Step 6: Final answer
    x = 245,569.20

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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.