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Finding the Fourth Proportional to 191,107.40, 286,661.10 and 48,952.40

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Solution

The fourth proportional to 191,107.40, 286,661.10 and 48,952.40 is: 73,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,107.40 : 286,661.10 = 48,952.40 : x
  2. Step 2: Convert to fraction form
    191,107.40/286,661.10 = 48,952.40/x
  3. Step 3: Cross multiply
    191,107.40x = 286,661.10 × 48,952.40
  4. Step 4: Simplify right side
    191,107.40x = 14,032,748,831.64
  5. Step 5: Solve for x
    x = 14,032,748,831.64/191,107.40
  6. Step 6: Final answer
    x = 73,428.60

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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.