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Finding the Fourth Proportional to 190,831.10, 286,246.65 and 190,831.10

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Solution

The fourth proportional to 190,831.10, 286,246.65 and 190,831.10 is: 286,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,831.10 : 286,246.65 = 190,831.10 : x
  2. Step 2: Convert to fraction form
    190,831.10/286,246.65 = 190,831.10/x
  3. Step 3: Cross multiply
    190,831.10x = 286,246.65 × 190,831.10
  4. Step 4: Simplify right side
    190,831.10x = 54,624,763,090.82
  5. Step 5: Solve for x
    x = 54,624,763,090.82/190,831.10
  6. Step 6: Final answer
    x = 286,246.65

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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.