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Finding the Fourth Proportional to 74,905, 103,368.90 and 41,373.16

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Solution

The fourth proportional to 74,905, 103,368.90 and 41,373.16 is: 57,094.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,905 : 103,368.90 = 41,373.16 : x
  2. Step 2: Convert to fraction form
    74,905/103,368.90 = 41,373.16/x
  3. Step 3: Cross multiply
    74,905x = 103,368.90 × 41,373.16
  4. Step 4: Simplify right side
    74,905x = 4,276,698,038.72
  5. Step 5: Solve for x
    x = 4,276,698,038.72/74,905
  6. Step 6: Final answer
    x = 57,094.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.