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Finding the Fourth Proportional to 164,831.60, 247,139.40 and 64,931.60

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Solution

The fourth proportional to 164,831.60, 247,139.40 and 64,931.60 is: 97,354.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,831.60 : 247,139.40 = 64,931.60 : x
  2. Step 2: Convert to fraction form
    164,831.60/247,139.40 = 64,931.60/x
  3. Step 3: Cross multiply
    164,831.60x = 247,139.40 × 64,931.60
  4. Step 4: Simplify right side
    164,831.60x = 16,047,156,665.04
  5. Step 5: Solve for x
    x = 16,047,156,665.04/164,831.60
  6. Step 6: Final answer
    x = 97,354.86

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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.