Finding the Fourth Proportional to 124,119,773.98, 171,285,279.85 and 71,939,076.84
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Solution
The fourth proportional to 124,119,773.98, 171,285,279.85 and 71,939,076.84 is: 99,275,921.26
Step by Step Solution
- Step 1: Write the proportion equation
124,119,773.98 : 171,285,279.85 = 71,939,076.84 : x - Step 2: Convert to fraction form
124,119,773.98/171,285,279.85 = 71,939,076.84/x - Step 3: Cross multiply
124,119,773.98x = 171,285,279.85 × 71,939,076.84 - Step 4: Simplify right side
124,119,773.98x = 12,322,104,908,690,054 - Step 5: Solve for x
x = 12,322,104,908,690,054/124,119,773.98 - Step 6: Final answer
x = 99,275,921.26
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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.