Finding the Fourth Proportional to 176,155.49, 243,091.44 and 107,220.03
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Solution
The fourth proportional to 176,155.49, 243,091.44 and 107,220.03 is: 147,961.73
Step by Step Solution
- Step 1: Write the proportion equation
176,155.49 : 243,091.44 = 107,220.03 : x - Step 2: Convert to fraction form
176,155.49/243,091.44 = 107,220.03/x - Step 3: Cross multiply
176,155.49x = 243,091.44 × 107,220.03 - Step 4: Simplify right side
176,155.49x = 26,064,271,489.54 - Step 5: Solve for x
x = 26,064,271,489.54/176,155.49 - Step 6: Final answer
x = 147,961.73
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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.