Finding the Fourth Proportional to 110,815.64, 152,905.32 and 65,501
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Solution
The fourth proportional to 110,815.64, 152,905.32 and 65,501 is: 90,379.40
Step by Step Solution
- Step 1: Write the proportion equation
110,815.64 : 152,905.32 = 65,501 : x - Step 2: Convert to fraction form
110,815.64/152,905.32 = 65,501/x - Step 3: Cross multiply
110,815.64x = 152,905.32 × 65,501 - Step 4: Simplify right side
110,815.64x = 10,015,451,365.32 - Step 5: Solve for x
x = 10,015,451,365.32/110,815.64 - Step 6: Final answer
x = 90,379.40
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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.