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Finding the Fourth Proportional to 358,167.80, 537,066.74 and 105,415.40

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Solution

The fourth proportional to 358,167.80, 537,066.74 and 105,415.40 is: 158,068.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,167.80 : 537,066.74 = 105,415.40 : x
  2. Step 2: Convert to fraction form
    358,167.80/537,066.74 = 105,415.40/x
  3. Step 3: Cross multiply
    358,167.80x = 537,066.74 × 105,415.40
  4. Step 4: Simplify right side
    358,167.80x = 56,615,105,223.80
  5. Step 5: Solve for x
    x = 56,615,105,223.80/358,167.80
  6. Step 6: Final answer
    x = 158,068.66

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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.